Question

我有一个UIView，其中包含一些UIButtons，我从屏幕外到屏幕动画。我发现他们前往的区域在到达之前是可点击的。动画非常简单，所以我想知道是否有一些明显的东西我告诉代码不要将按钮视为最终目的地（我不确定是否应该这样）是预期的行为，动画纯粹是一个视觉，而可点击的区域是即时到达目的地;我不希望它是。）

这是我用来为它设置动画的代码。它基本上是切换一个子面板并带回一个带有按钮的主面板：

    // switch back to main abilities panel
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration: kFadeInTime];
    CGRect rect = CGRectMake(
        480.0f,
        mAbilities.mSubPanel.frame.origin.y,
        mAbilities.mSubPanel.frame.size.width,
        mAbilities.mSubPanel.frame.size.height);
    mAbilities.mSubPanel.frame = rect;
    [UIView commitAnimations];

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration: kFadeInTime];
    [UIView setAnimationDelay: kFadeInTime];
    rect = CGRectMake(
        kAbilitiesBorderX,
        mAbilities.mPanel.frame.origin.y,
        mAbilities.mPanel.frame.size.width,
        mAbilities.mPanel.frame.size.height);
    mAbilities.mPanel.frame = rect;
    [UIView commitAnimations];

Answer 1

作为一种解决方法，您可以在动画播放前禁用用户与面板的互动，并在动画完成后重新启用它：

// Animation compete handler
- (void)animationDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context{
    mAbilities.mSubPanel.userInteractionEnabled = YES;

}

// Animating panel
mAbilities.mSubPanel.userInteractionEnabled = NO;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration: kFadeInTime];
[UIView setAnimationDelegate: self];
CGRect rect = CGRectMake(
    480.0f,
    mAbilities.mSubPanel.frame.origin.y,
    mAbilities.mSubPanel.frame.size.width,
    mAbilities.mSubPanel.frame.size.height);
mAbilities.mSubPanel.frame = rect;
[UIView commitAnimations];

如果你的目标是iOS4，你可以（并且如规格所述）使用基于块的动画api：

[UIView animateWithDuration:5.0f delay:0.0f options:UIViewAnimationOptionLayoutSubviews
         animations:^(void){
             CGRect rect = CGRectMake(
                                     480.0f,
                                     mAbilities.mSubPanel.frame.origin.y,
                                     mAbilities.mSubPanel.frame.size.width,
                                     mAbilities.mSubPanel.frame.size.height);
                      mAbilities.mSubPanel.frame = rect;
         } 
         completion:NULL
     ];

默认情况下禁用动画使用块用户交互 - 您可以通过在options参数中设置UIViewAnimationOptionAllowUserInteraction标志来启用它：

... options:UIViewAnimationOptionLayoutSubviews | UIViewAnimationOptionAllowUserInteraction ...

动画UIButtons在到达目的地之前可在目的地点击

1 个答案: